A3987SLPTR-T
advanced microstepping technology
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製造商零件號 # : A3987SLPTR-T
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包裝/封裝: TSSOP-24
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製造商: Allegro Microsystems
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產品分類 : Motor Drivers, Controllers
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A3987SLPTR-T 數據表
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詳細說明
The dual full-bridge MOSFET power output stage of the A3987SLPTR-T is a standout feature, as it allows for efficient motor driving with minimal heat dissipation. This means that your devices can operate smoothly and reliably without any concerns about overheating. Moreover, its pulse-width modulation (PWM) current control algorithm ensures smooth and precise motor control, delivering the performance that you need
主要特徵
- High-performance bipolar motor control IC
- Thermal shutdown and diagnostic capabilities included
- Wide operating voltage range of 4
- 5V to 30V with overcurrent protection
應用
- Explore new possibilities
- Drive innovation forward
- Unleash your potential
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Product Category ! | Motor / Motion / Ignition Controllers & Drivers | RoHS | Details |
Product | Brushed DC Motor Drivers | Type | Microstepping |
Operating Supply Voltage ! | 3 V to 5.5 V | Output Current ! | 1.5 A |
Operating Supply Current | 4 mA | Minimum Operating Temperature | - 20 C |
Maximum Operating Temperature ! | + 85 C | Mounting Style | SMD/SMT |
Package / Case | TSSOP-24 | Brand | Allegro MicroSystems |
Load Voltage Rating | 50 V | Moisture Sensitive | Yes |
Number of Outputs | 2 Output | Product Type ! | Motor / Motion / Ignition Controllers & Drivers |
Series | A3987 | Factory Pack Quantity | 4000 |
Subcategory | PMIC - Power Management ICs |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is A3987SLPTR-T?
The A3987SLPTR-T is a dual full-bridge PWM microstepping motor driver designed by Allegro MicroSystems. It is specifically designed for driving bipolar stepper motors in a wide range of applications, including robotics, automation, 3D printers, and CNC machines.
How Does A3987SLPTR-T Work?
The A3987SLPTR-T works by controlling the current and voltage applied to the coils of a bipolar stepper motor to achieve precise microstepping motion. It utilizes pulse-width modulation (PWM) to control the motor current, enabling smooth and accurate positioning of the motor shaft. The dual full-bridge configuration allows independent control of two stepper motors.
How Many Pins does A3987SLPTR-T have and What are the Functions of the Pinout Configuration?
The A3987SLPTR-T is housed in a 28-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:
- VCP, VINT: Power supply and internal voltage regulator pins.
- GND: Ground pin.
- NEN/SET: Enable/Set input pin.
- M0, M1, M2: Microstepping resolution control pins.
- SLEEP: Sleep mode input pin.
- RST: Reset input pin.
- INA1, INA2, INB1, INB2: Input control pins for motor 1.
- INC1, INC2, IND1, IND2: Input control pins for motor 2.
What are the Pros and Cons of A3987SLPTR-T?
Pros:
- Microstepping Support: Allows smooth and precise movement of stepper motors.
- Dual Motor Control: Supports independent control of two stepper motors.
- High Efficiency: Utilizes PWM current control for efficient motor operation.
- Thermal Protection: Includes thermal shutdown and thermal warning features to protect the driver and motor.
- Compact Package: The 28-pin TSSOP package is compact and suitable for space-constrained designs.
Cons:
- Complexity: Requires careful attention to motor current, microstepping settings, and thermal considerations for optimal performance.
- External Components: May require additional external components such as current sense resistors and diodes for full functionality.
Are There Any Equivalents/Alternatives to A3987SLPTR-T for Recommendation?
Alternatives to the A3987SLPTR-T include the DRV8825 from Texas Instruments and the TB67S249FTG from Toshiba, both of which are also dual full-bridge PWM microstepping motor drivers.
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